The operation failed but the sender does not wish to reveal the reason, or none of the other reason codes apply. Used in CONNACK, PUBACK, PUBREC, SUBACK, UNSUBACK, and DISCONNECT packets.
Numeric value: 128
UnspecifiedError
mqtt The operation failed but the sender does not wish to reveal the reason, or none of the other reason codes apply. Used in CONNACK, PUBACK, PUBREC, SUBACK, UNSUBACK, and DISCONNECT packets.
Numeric value: 128